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  • Hydrographic Surveys (eHydro)

    Access official hydrographic survey data and channel condition reports for USACE navigation projects through the eHydro Dashboard. View survey results, channel depths, and dredging information for all Great Lakes and Ohio River Division waterways. eHydro is the authoritative source for all USACE hydrographic survey data per ER 1110-2-8164.

  • Navigation Charts (IENC)

    Download official Inland Electronic Navigation Charts (IENC) for safe navigation on inland waterways. IENCCloud.us is the only authorized source for USACE navigation charts. Charts are updated regularly and available for free download. Compatible with electronic chart display systems.

  • Notices To Navigation Interests (NTNI) Portal

    View current Notices to Navigation Interests (NTNI) published by the USACE Navigation Data Center. Find information about channel closures, lock and dam status, navigation hazards, chart updates, and dredging operations.

  • Regulatory Request System (RRS) Public Notices

    Search all active permit applications for Section 404 (wetlands), Section 10 (navigable waters), and Section 408 (alterations to USACE projects) in the official Regulatory and Response System (RRS). View permit details, submit comments during public comment periods, and track application status. RRS is the authoritative source for all USACE regulatory permits.

  • Water Management Data (CWMS)

    Access real-time water level data, reservoir operations, water releases, and forecasts for all USACE projects through the Corps Water Management System (CWMS). View current gage readings, historical data, and operational schedules. CWMS is the authoritative source for all USACE water management information per EM 1110-2-3600.

  • Draft Environmental Assessment and Finding of No Significant Impact Available for Public Comment: Section 571 St. Marys Water System Improvements Project

    Expiration date: 4/16/2026

    The U.S. Army Corps of Engineers, Huntington District, announces the availability of a Draft Environmental Assessment (EA) and Draft Finding of No Significant Impact (FONSI) for the Section 571 St. Marys Water System Improvements Project in Pleasants County, West Virginia. The project would replace deteriorating water infrastructure at five

    Draft Environmental Assessment
    Draft Finding of No Significant Impact

  • 2026 Nationwide Permits Regional Conditions for Pennsylvania

    Expiration date: 3/15/2031

    Regional Conditions Applicable to Specific Nationwide Permits within the Commonwealth of Pennsylvania

  • 2026 Nationwide Permits Regional Conditions for New York

    Expiration date: 3/15/2031

    The U.S. Army Corps of Engineers Buffalo District announces final regional conditions for the 2026 Nationwide Permits in New York State, effective March 15, 2026. The regional conditions, approved by the North Atlantic Division and Great Lakes and Ohio River Division, provide environmental protection for high-value waters and ensure compliance with state water quality certifications and Coastal Zone Management Act consistency requirements. These conditions apply to activities authorized under the reissued Nationwide Permits published in the Federal Register on January 8, 2026.

    PDF: 2026 NWP Final Regional Conditions - New York State
    Federal Register Notice - January 8, 2026

  • 2026 Nationwide Permits Regional Conditions for Michigan

    Expiration date: 3/15/2031

    The U.S. Army Corps of Engineers, Detroit District, announces the reissuance of 57 nationwide permits (NWPs) effective March 15, 2026, through March 15, 2031, for activities in waters of the United States in Michigan. This public notice provides the NWP text, regional conditions, water quality certification requirements, and general conditions applicable to Michigan.

  • 2026 Nationwide Permits Regional Conditions for Virginia

    Expiration date: 3/15/2031

    This Public Notice announces Norfolk District’s Final Regional Conditions, the Section 401 Water Quality Certification (WQC) and the Coastal Zone Management Act (CZMA) determination for the 57 nationwide permits (NWPs) that were published in the January 8, 2026, Federal Register (91 FR 768). These 57 NWPs and the Regional Conditions will go into effect on March 15, 2026, and will expire on March 15, 2031.

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Consolidation of Studies

The Water Resources Development Act establishes a single-phase cost-shared study process that for each feasibility study undertaken, the district engineer will develop a detailed study schedule and notify the non-federal interests.

Overviews of study schedule milestones are posted below.